To provide a brake mechanism and reaction wheel that are small-sized, are light-weight, and have a long life.SOLUTION: A brake mechanism comprises: a frame; a rotor disposed so as to face the frame; an electromagnet disposed between the frame and the rotor; and an energization member that is mounted on the frame and energizes the electromagnet to the frame side. At least a portion of the part of the rotor facing the electromagnet is formed from ferromagnetic material. The electromagnet is energized by the energization member so that the electromagnet is separated from the rotor at the time of non-excitation of the electromagnet; the rotor is braked by the electromagnet coming in contact with the rotor while resisting energization force of the energization member at the time of excitation of the electromagnet.SELECTED DRAWING: Figure 2

    【課題】小型、軽量、長寿命の制動機構及びリアクションホイールを提供すること。【解決手段】フレームと、前記フレームに対向して配置された回転体と、前記フレームと前記回転体との間に配置された電磁石と、前記フレームに取り付けられ、前記電磁石を前記フレーム側に付勢する付勢部材と、を備え、前記回転体の前記電磁石に対向する部分の少なくとも一部は、強磁性体材料で形成され、前記電磁石の非励磁時に前記電磁石と前記回転体が離間するように前記電磁石が前記付勢部材により付勢され、前記電磁石の励磁時に前記電磁石が前記付勢部材の付勢力に抗して前記回転体に接触することによって前記回転体が制動される制動機構。【選択図】図2


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    Title :

    BRAKE MECHANISM, REACTION WHEEL INCLUDING BRAKE MECHANISM, REACTION WHEEL DEVICE, AND REACTION WHEEL SYSTEM


    Additional title:

    制動機構、制動機構を備えるリアクションホイール、リアクションホイール装置、リアクションホイールシステム


    Contributors:

    Publication date :

    2021-03-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B64G Raumfahrt , COSMONAUTICS / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS



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